Engineering/Chemical Engineering Mcq Question Set 7 Sample Test,Sample questions

Question:
 A reactor is supplied with 10 moles of O2 and 10 moles of H2, if the extent of reaction is 5, how many moles of water is produced?

1.5

2.10

3.15

4.20


Question:
 A reactor is supplied with 5 moles of KNO3 and some H2SO4, if the extent of reaction is 2, how many moles of H2SO4 were supplied?

1.1

2. 2

3. 5

4.Cannot be determined


Question:
 A reactor is supplied with two steams with equal flow rates, stream-1 containing 75% SO2, 25% N2 and stream-2 containing pure H2S, if the product has 1200 grams of S, and the ratio of H2S to H2O is 5 and the ratio of SO2 to H2S is 2, what fraction of excess reagent is converted into product?

1.0.23

2.0.55

3.0.74

4.0.87


Question:
 Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of H2O in products?

1.5.8%

2.9.5%

3.15.4%

4.20.7%


Question:
1 mole of potassium permanganate and 1 mole of ferrous sulfide are reacted in presence of excess hydrochloric acid, how many moles of Ferric sulfate will produce?

1. 10/18

2.5/18

3.1/18

4.1/36


Question:
10 grams of NaCl and 1.8 grams of H2O are reacted, how much sodium hydroxide will produce?

1.4 grams

2.10 grams

3.40 grams

4.80 grams


Question:
10 moles of ethane is supplied with 49 moles of oxygen, what is the percentage of excess oxygen?

1.20%

2.40%

3.50%

4.70%


Question:
144 grams of C5H12 is burnt with 64 grams O2, and 44 grams of CO2 is formed, what is the percentage of excess O2?

1.25%

2.50%

3.75%

4.100%


Question:
5 moles of Al2O3 are reacted with 10 moles H2SO4, how many moles of Al2(SO4)3 will produce?

1. 3.33

2.10

3.30

4. 33.3


Question:
A reactor is supplied with 10 moles of CH4 and 10 moles of O2, if the extent of reaction is 3, what are the moles of CO2 produced?

1.3

2.6

3. 8

4.12


Question:
A reactor is supplied with 12 moles of C, and it undergoes following reactions C + 0.5O2 -> CO and C + O2 -> CO2, if 4 moles of CO2 was produced and 4 moles of C remains unreacted, what are the number of moles of CO produced?

1.1

2.2

3.3

4.4


Question:
A reactor is supplied with 15 moles of C, and it undergoes following reactions C + 0.5O2 -> CO and C + O2 -> CO2, if 8 moles of CO2 was produced and 3 moles of C remains unreacted, what are the number of moles of CO produced?

1.1

2.2

3.3

4.4


Question:
A reactor is supplied with 25 moles of C, and it undergoes following reactions C + 0.5O2 -> CO and C + O2 -> CO2, if 13 moles of CO2 was produced and 5 moles of C remains unreacted, what are the number of moles of CO produced?

1. 1

2.3

3.5

4.7


Question:
A reactor is supplied with 5 moles each of CH3OH and O2, and the following reactions occur, CH3OH + 1/2O2 -> CH2O + H2O and then CH2O + 1/2O2 -> CO + H2O, the conversion of methanol is 80% in first reaction, and conversion of CH2O is 50% in second reaction. How many moles of CH2O came out of the reactor?

1.1

2.2

3. 3

4. 4


Question:
A reactor is supplied with 5 moles each of CH3OH and O2, and the following reactions occur, CH3OH + 1/2O2 -> CH2O + H2O and then CH2O + 1/2O2 -> CO + H2O, the conversion of methanol is 80% in first reaction, and conversion of CH2O is 50% in second reaction. How many moles of CH3OH are there in the products?

1.1

2.2

3.3

4. 4


Question:
A reactor is supplied with 5 moles each of CH3OH and O2, and the following reactions occur, CH3OH + 1/2O2 -> CH2O + H2O and then CH2O + 1/2O2 -> CO + H2O, the conversion of methanol is 80% in first reaction, and conversion of CH2O is 50% in second reaction. How many moles of CO are produced?

1.1

2. 2

3. 3

4.4


Question:
A reactor is supplied with 5 moles each of CH3OH and O2, and the following reactions occur, CH3OH + 1/2O2 -> CH2O + H2O and then CH2O + 1/2O2 -> CO + H2O, the conversion of methanol is 80% in first reaction, and conversion of CH2O is 50% in second reaction. How many moles of H2O are produced?

1.2

2.3

3. 5

4.6


Question:
A reactor is supplied with 5 moles each of CH3OH and O2, and the following reactions occur, CH3OH + 1/2O2 -> CH2O + H2O and then CH2O + 1/2O2 -> CO + H2O, the conversion of methanol is 80% in first reaction, and conversion of CH2O is 50% in second reaction. How many moles of O2 are there in the products?

1.1.75

2. 2

3.3.25

4.5.5


Question:
A reactor is supplied with 5 moles of C4H10, and it undergoes following reactions C4H10 + 4H2O -> 4CO + 9H2 and C4H10 + 6.5O2 -> 4CO2 + 5H2O, if 8 moles of CO2 was produced and 2 moles of C4H10 remains unreacted, what are the number of moles of CO produced?

1.1

2.2

3.3

4.4


Question:
A reactor is supplied with 5 moles of C4H10, and it undergoes following reactions C4H10 + 4H2O -> 4CO + 9H2 and C4H10 + 6.5O2 -> 4CO2 + 5H2O, if 8 moles of CO2 was produced and 2 moles of C4H10 remains unreacted, what are the number of moles of water produced?

1.2

2.5

3.7.5

4. 10


Question:
A reactor is supplied with 6 moles of CO and 3 moles of O2 and produced 4 moles of CO2, what is the extent of reaction?

1.1

2.2

3.3

4.4


Question:
A reactor is supplied with 6 moles of N2 and 9 moles of H2, if 3 moles of NH3 is produced, how many moles of H2 are left at the end?

1.1.5

2. 3

3. 4.5

4. 60


Question:
A reactor is supplied with a 100 mole feed of composition 46% C3H7O4, 44% O2 and 10% N2, if 50% of the limiting reagent is converted into product, what is the extent of reaction?

1. 1

2.2

3.3

4. 4


Question:
A reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2, if 50% of the limiting reagent is converted into product, what is the percentage of C3H7O4 in the product?

1.10

2. 16

3.31

4.43


Question:
A reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2, if 50% of the limiting reagent is converted into product, what is the percentage of H2O in the product?

1. 15

2.23

3.39

4.51


Question:
A reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2, if 50% of the limiting reagent is converted into product, what is the percentage of N2 in the product?

1. 8

2.18

3.34

4.46


Question:
A reactor is supplied with a feed of composition 46% C3H7O4, 44% O2 and 10% N2, if 50% of the limiting reagent is converted into product, what is the percentage of O2 in the product?

1.10

2.18

3. 38

4. 54


Question:
A reactor is supplied with C6H12O6 and the following reactions occur C6H12O6 -> 2C2H5OH + 2CO2 and C6H12O6 –> 2C2H3CO2H + 2H2O, 360 grams of pure glucose is supplied and 44 grams of CO2 was produced, what 90 grams of glucose left unreacted, how many grams of ethanol was produced?

1.23

2. 46

3. 92

4.186


Question:
A reactor is supplied with C6H12O6 and the following reactions occur C6H12O6 -> 2C2H5OH + 2CO2 and C6H12O6 –> 2C2H3CO2H + 2H2O, 360 grams of pure glucose is supplied and 44 grams of CO2 was produced, what 90 grams of glucose left unreacted, how many grams of propenoic acid was produced?

1.18

2.36

3. 72

4.144


Question:
A reactor is supplied with C6H12O6 and the following reactions occur C6H12O6 -> 2C2H5OH + 2CO2 and C6H12O6 –> 2C2H3CO2H + 2H2O, 360 grams of pure glucose is supplied and 44 grams of CO2 was produced, what 90 grams of glucose left unreacted, how many grams of water was produced?

1.9

2.18

3. 36

4.54


Question:
A reactor is supplied with two steams with equal flow rates, stream-1 containing 75% SO2, 25% N2 and stream-2 containing pure H2S, if the product has 1200 grams of S, and the ratio of H2S to H2O is 5 and the ratio of SO2 to H2S is 2, how many moles of water are produced?

1. 1

2.2

3.3

4.4


Question:
A reactor is supplied with two steams with equal flow rates, stream-1 containing 75% SO2, 25% N2 and stream-2 containing pure H2S, if the product has 1200 grams of S, and the ratio of H2S to H2O is 5 and the ratio of SO2 to H2S is 2, what fraction of limiting reagent is converted into product?

1.0.21

2.0.46

3.0.73

4. 0.83


Question:
A reactor is supplied with two steams with equal flow rates, stream-1 containing 75% SO2, 25% N2 and stream-2 containing pure H2S, if the product has 1200 grams of S, and the ratio of H2S to H2O is 5 and the ratio of SO2 to H2S is 2, what is percentage of Sulfur in the product?

1.23%

2.47%

3.61%

4.84%


Question:
A reactor is supplied with two steams with equal flow rates, stream-1 containing 75% SO2, 25% N2 and stream-2 containing pure H2S, if the product has 1200 grams of S, and the ratio of H2S to H2O is 5 and the ratio of SO2 to H2S is 2, what is the rate of streams?

1.10 mole

2.20 moles

3.30 moles

4.40 moles


Question:
Ethene is burnt with 150% of excess air, what is the percentage of O2 in the products?

1.12.5%

2.33.3%

3.45.4%

4.52.9%


Question:
Ethene is burnt with 50% of excess air, what is the percentage of CO2 in the products?

1.11.11%

2.36.36%

3.66.66%

4. 72.72%


Question:
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of CO2 in products?

1.4.7%

2.10.4%

3.16.5%

4.24.3%


Question:
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of N2 in products?

1. 25.4%

2.45.2%

3. 75.2%

4.95.6%


Question:
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of O2 in products?

1.10.4%

2.25.8%

3.45.6%

4.78.2%


Question:
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the rate of products?

1.900 moles

2. 950 moles

3.1000 moles

4.1050 moles


Question:
Octane is burnt with 40% excess O2, what is the percentage of CO2 in products?

1.18.18%

2. 36.36%

3. 54.54%

4.72.72%


Question:
Pentane is burnt with 100% of excess air, what is the percentage of H2O in the products?

1.12.4%

2.34.6%

3.42.1%

4. 56.9%


Question:
Propane is burnt with 20% excess O2, what is the percentage of CO2 in products?

1.12.5%

2.25%

3.45%

4.75.5%


Question:
The extent of a reaction is 10, and the stoichiometric coefficient of O2 is 2.5, if the moles of O2 entering the process is 45, what is the percentage of excess air?

1. 20%

2.40%

3. 60%

4.80%


Question:
What is the percentage of excess air if 50 grams of air is in excess and 150 grams of air enters the process?

1.10%

2.25%

3.50%

4.100%


Question:
What is the percentage of excess air, if 10 moles of air entered the process and only 5 moles of that are required?

1.10%

2.50%

3.75%

4.100%


Question:
What is the value of C?

1.400 Kg/hr

2. 689.5 Kg/hr

3. 819.6 Kg/hr

4.959.2 Kg/hr


Question:
What is the value of D?

1.32.3 Kg/hr

2.49.1 Kg/hr

3.85.6 Kg/hr

4.105.3 Kg/hr


Question:
What is the value of F?

1.98.5 Kg/hr

2.131.1 Kg/hr

3.167.7 Kg/hr

4.256.4 Kg/hr


Question:
What is the value of W?

1.159.2 Kg/hr

2.281.3 Kg/hr

3.465.7 Kg/hr

4.633.8 Kg/hr


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